The data purchased is used to display the trade lines on the galaxy map, you get the data free when you visit a station in that system.
You can filter the trade lines to show specific commodities being traded between systems, it can be a great help in locating goods..
The import/export information shown on the commodity screen (as mentioned above) is local data and is shown regardless, because you get it free
An issue still exists with the markets, this may be getting patched next week, so at the moment the info may or may not make sense.
Importers are being oversaturated with goods and in turn selling them off for less than the supplier, meaning it can be more profitable to buy from the consumer
Official Posts:
Where the AI's have been over-zealous creates an imbalance and because of the mechanism used means that some markets that should only import will get flooded and end up exporting. However if you look at the trade route data you'll see lots of trade in that direction, but the price sucks. Making the AI behave should put the markets back to where they're supposed to be.
Thanks to the players who provided us with the hard data - it helped us find this!
Michael
Hello Commanders!
Just a heads up.
In order to stop the AI from overtrading, we're having to reorganise the order in which market data is processed for the simulation. This is a non-trivial fix, plus, we want make sure we are actually nailing the issue, so the fix roll out is likely to be next week, assuming we've got to the root of the problem.
Hope this info helps.
When it works correctly, you should be able to use the trade lines and other information for guidance in what items might be profitable, although due to the market being dynamic, it can never guarantee a profit. The best way is to actually visit a station or three and see for yourself.
Its also important to note that the galaxy map data is for the system as a whole. Various stations inside a system have their own economy type, so you may need to visit different stations in order to buy what you need or sell what you have.